Photodiodes

Photodiodes are used in an array of every day electronic devices such as camera's, smoke detectors, burglar alarms, safety equipment, medical applications, CD players and surveying instruments to name a few.

What is a photodiode?

They are used as light sensors or detectors. When light reaches a photodiode, this is converted to electrical energy in the form of an electric current. The photocurrent that is produced is proportional to the amount of light. Photodiodes can also be known as photosensors, photodetectors and light detectors.

Photonic applications use the photon in the same way as electronic applications use the electron. There is usually a small amount of electric current that flows through these photosensitive devices even when no light (photons) are entering it. This is known as dark current.

What are the different types?

The PN photodiode was the first to be developed, it is not so widely used these days due to their relatively low performance compared to newer technologies.

The PIN photodiode has a wider surface area and allows for more light photons to be collected, as well as having a lower capacitance. It is the most widely used diode today.

Avalanche photodiodes are used in areas where there is low light, it operates under a high reverse bias condition. The higher the reverse voltage, the higher the gain.

Schottky photodiode is based on the schottky diode, or shottky barrier diode. It provides additional functions over others, particularly with regards to high speed and long wavelength detection.

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Description Price Spectrums Detected Wavelength of Peak Sensitivity Package Type Mounting Type Number of Pins Diode Material Minimum Wavelength Detected Maximum Wavelength Detected Typical Fall Time Length Width Height Angle of Half Sensitivity Automotive Standard
RS Stock No. 176-9781
Mfr. Part No.FCI-InGaAs-120
$50.26
Each
units
- 1700nm TO-46 Through Hole 3 InGaAs 900nm 1700nm 0.3 (Maximum)ns - - 3.75mm - -
New
RS Stock No. 201-9550
Mfr. Part No.SFH 2703
$2,114.67
1 Reel of 3000
Reel(s)
- 940nm - Surface Mount 2 Si - - - - - - 65 ° -
RS Stock No. 176-9785
Mfr. Part No.PIN-25D
$522.35
Each
units
Visible Light 970nm BNC Surface Mount 1 Si 350nm 1100nm - - - 14.224mm - -
RS Stock No. 183-7175
Mfr. Part No.PIN-44D
$77.02
Each
units
Infrared 970nm TO-8 Through Hole 2 Si 350nm 1100nm - - - 0.205in - -
RS Stock No. 188-6471
Mfr. Part No.AFBR-S4N66C013
BrandBroadcom
$68.56
Each (In a Tray of 100)
units
Visible Light 420nm CSP Surface Mount 32 Si 300nm 900nm 56ns 6.14mm 6.14mm 0.3mm - -
RS Stock No. 654-8794
Mfr. Part No.SFH 2500 FA-Z
$0.87
Each (In a Pack of 5)
units
Infrared 900nm SMR Surface Mount 2 Si 750nm 1100nm - 7.7mm 6mm 6mm 15 ° -
RS Stock No. 180-2308
Mfr. Part No.S13948-01SB
$2.67
Each (In a Bag of 50)
units
Visible Light 560nm - Through Hole 2 - 300nm 820nm 2.5ms - - 3.5mm - -
RS Stock No. 161-2060
Mfr. Part No.VEMD6060X01
BrandVishay
$0.869
Each (On a Reel of 3000)
units
Infrared 820nm 1206 Surface Mount 3 Si 380nm - 50ns 4mm 2mm 1.05mm ±70 ° AEC-Q101
RS Stock No. 919-0988
Mfr. Part No.VBPW34SR
BrandVishay
$0.696
Each (On a Reel of 1000)
units
Infrared, Visible Light 940nm Reverse Gullwing Surface Mount 2 Si 430nm 1100nm - 4.4mm 3.9mm 1.2mm ±65 ° -
RS Stock No. 184-1646
Mfr. Part No.PIN-020A
$26.836
Each (In a Tray of 10)
units
- - - - - - - - - - - - - -
RS Stock No. 654-8570
Mfr. Part No.BP 104 FS-Z
$0.87
Each (In a Pack of 5)
units
Infrared 950nm DIP Surface Mount 2 Si 800nm 1100nm - 4.5mm 4mm 1.2mm 60 ° -
RS Stock No. 161-2061
Mfr. Part No.VEMD6110X01
BrandVishay
$0.668
Each (On a Reel of 3000)
units
Infrared 950nm 1206 Surface Mount 3 Si 750nm - 100ns 4mm 2mm 1.05mm ±60 ° AEC-Q101
RS Stock No. 176-4204
Mfr. Part No.SFH 2700 FA
$1.09
Each (In a Pack of 20)
units
Infrared 1100nm Chip LED Surface Mount 2 Si 700nm 1100nm 0.12µs 2mm 1.25mm 0.8mm 60 ° -
RS Stock No. 177-5559
Mfr. Part No.PIN-25DP
$766.31
Each (In a Box of 2)
units
Visible Light 970nm BNC Surface Mount 1 Si 350nm 1100nm - 42.55mm - 26.16mm - -
RS Stock No. 184-7295
Mfr. Part No.1540051EC3590
$0.688
Each (In a Pack of 25)
units
Infrared 940nm 5 Through Hole 2 Si 700nm 1100nm - 5mm 5mm 8.7mm 35 ° -
RS Stock No. 919-0736
Mfr. Part No.TEMD5110X01
BrandVishay
$1.06
Each (On a Reel of 1500)
units
Infrared 940nm - Surface Mount 4 Si 790nm 1050nm - 4.2mm 5mm 1.08mm 65 ° -
RS Stock No. 183-7127
Mfr. Part No.PIN-44DP
$67.088
Each (In a Tray of 10)
units
Infrared 970nm TO-8 Through Hole 2 Si 350nm 1100nm - - - 0.205in - -
RS Stock No. 183-7131
Mfr. Part No.PIN-10DP
$134.87
Each (In a Tray of 10)
units
Infrared 970nm BNC Surface Mount 1 Si 350nm 1100nm - - - 1.03in - -
RS Stock No. 184-1889
Mfr. Part No.PIN-020A
$30.80
Each
units
Infrared 970nm TO-18 Through Hole 3 Si 350nm 1100nm - - - 0.2in - -
RS Stock No. 170-9639
Mfr. Part No.BP 104 FASR-Z
$0.574
Each (On a Reel of 1500)
units
- 880nm - Surface Mount 2 Si - 880nm 0.02µs 4.5mm 4mm 1.2mm ±60 ° -
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